Retargeting and Styling 3D Objects from Structure Preservation to Physical Fabrication

• Main Authors: Chun-Kai Huang, 黃群凱
• Other Authors: Bing-Yu Chen
• Format: Others
• Language: en_US
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/c5524a

博士 === 國立臺灣大學 === 資訊工程學研究所 === 106 === The three-dimensional content creation is one of the critical challenges of modern computer graphics. Due to the real-world acquisition and handcrafted modeling consume a lot of time and resources. The goal of this dissertation is that proposes a series of the 3D object retargeting methods which can be used to synthesize new 3D contents and different representation of 3D objects. In this dissertation, we first introduce a novel technique to create an SD style counterpart of a normal 3D character model. Our approach uses an optimization guided by a number of constraints that can capture the properties of the SD style. Then, we present an interactive method suitable for retargeting both 3D objects and scenes. Initially, the input object or scene is decomposed into a collection of constituent components enclosed by corresponding control bounding volumes which capture the intra-structures of the object or semantic grouping of objects in the 3D scene. The overall retargeting is accomplished through a constrained optimization by manipulating the control bounding volumes. Meanwhile, we propose an automatic UV map adjustment method which preserves the original texture appearance after deforming the 3D mesh. Lastly, we present a stability analysis and layout refinement algorithm that iteratively improves the structure around the LEGO bricks, allowing for automatic generation of a LEGO brick layout from a given 3D model, accounting for color information, required workload (in terms of the number of bricks) and physical stability.